The Home Office said it had opposed a judge's decision to release Giwa, left, from detention

The newspaper said he had then been held pending a decision on deportation, until a judge released him on the condition that he lived at an address in Newport and reported to UK Border Agency officers in Cardiff.

In his letter to Home Secretary Theresa May, the Newport West MP writes: "I understand that the Home Office is refusing to confirm the present location of Mr Giwa. I write presuming that the South Wales Argus story is accurate.

There is exasperation that criminal immigrants can evade justice by claiming to have lost their passports... or by otherwise attempting manipulate the systemPaul Flynn MP, Newport West

"Understandably there is deep outrage and anger that a man described as a 'dangerous criminal' and a 'serious threat to the public and young people' has been transferred to a residential address in the heart of urban Newport."

Mr Flynn said his constituents had raised concerns over why Newport was chosen and why Giwa had not been deported despite "flagrantly" breaking the law.

"There is exasperation that criminal immigrants can evade justice by claiming to have lost their passports, disguised their nationality or by otherwise attempting manipulate the system," the MP wrote.

"Has your department no remedies for these ploys?

'Dump on Wales'

"This person presents a problem for London and the rest of England. What was the process that determined that he, and the danger he represents, should be re-located to Wales and Newport?

"What other areas were considered and what consultations were held with Newport representatives? If unpalatable decisions are unavoidable, London should be responsible for its own problems and not seek to dump them on Wales and Newport."

Mr Flynn has also sent a copy of the letter to the chairman of the Home Affairs Committee, Keith Vaz MP, urging an investigation.

Giwa had not been deported despite 'flagrantly' breaking the law, Mr Flynn said

On October 22, 2013, the Daily Telegraph reported that High Court Judge John Keyser rejected a legal bid from Giwa for freedom on the grounds he posed a "significant risk" of reoffending.

But Judge Keyser ruled it would be illegal to detain him beyond the following three months amid a struggle to prove his true nationality.

The paper said authorities in Sierra Leone have refused to accept Giwa.

The Home Office would not confirm Giwa's whereabouts but said in a statement: "We vigorously opposed this individual's application for bail and we are very disappointed by the court's decision.

"He will be subject to rigorous monitoring, including an electronic tag, and we are continuing to fight for his removal from the UK."